i finally got my wiring correct by tracing back to the ecu by color....

im stil getting a cel showing only code 3 looked up in ecu thread and it says map sensor... but there is anotehr map sensor code 5..

after reading through archives i se most people get code 5 not code 3 but i am getting code 3... what does this mean?? is it possible that by trying so many different wire combonations i shorted out the map sensor ??

just trying to figure out whats the difference between code 3 and 5

 

Nothing. Code 3 is for MAP curcuit and so it is code 5. The only difference is that code 5 is for D15b7 (DX/LX). The map for the d15b7 has different vacuum lines and vavles then other d-series.

If you find the problem for code 3, it will probably find the problem for code 5 too.

BTW, you getting code 13 by chance?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbogixxer &raquo;</TD></TR><TR><TD CLASS="quote">Nothing. Code 3 is for MAP curcuit and so it is code 5. The only difference is that code 5 is for D15b7 (DX/LX). The map for the d15b7 has different vacuum lines and vavles then other d-series.

If you find the problem for code 3, it will probably find the problem for code 5 too.

BTW, you getting code 13 by chance?</TD></TR></TABLE>

funny you ask that because at one point in time last night i did get that CEL code 13... but now i dont get it anymore just only CEL 3 and thats it..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nextelbuddy &raquo;</TD></TR><TR><TD CLASS="quote">

just trying to figure out whats the difference between code 3 and 5</TD></TR></TABLE>
Code 3 point toward an electrical problem. Code 5 points toward a mechanical problem.

 

I was throwing a code 3 for almost 6 months. Finally the map sensor took a **** on me and the car would just shut off in the middle of driving sometimes. I purchased a new one from honda and it ran like a charm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ej1_coupe &raquo;</TD></TR><TR><TD CLASS="quote">I was throwing a code 3 for almost 6 months. Finally the map sensor took a **** on me and the car would just shut off in the middle of driving sometimes. I purchased a new one from honda and it ran like a charm. </TD></TR></TABLE>

realy? well im going to get a new one today anyways..

i have anothe question though.. when you throw a CEL cod 3 for MAP VTEC does not engage correct? i was under the assumption that when ever you have a CEL vtec does not engage...

but my last civic vtec would engage even if i through say a o2 sensor cel just trying to get some confirmation here...

i was throwing code 21 last night for vtec solonoid.. fixed that now i dont throw a 21 code anymore only code 3 but still vtec does not engage .. i was pretty sure that it was because of the CEl so i wasnt that worried last nigh about it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nextelbuddy &raquo;</TD></TR><TR><TD CLASS="quote">

funny you ask that because at one point in time last night i did get that CEL code 13... but now i dont get it anymore just only CEL 3 and thats it.. </TD></TR></TABLE>

You running the TB mounted MAP sensor or runnning the stock DX MAP sensor on the firewall?

 

im using the throttle body mounted sensor that came with the b16a2...

whats a good way to check the MAP sensor with a volt meter to see if its fried or not?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nextelbuddy &raquo;</TD></TR><TR><TD CLASS="quote">
i have anothe question though.. when you throw a CEL cod 3 for MAP VTEC does not engage correct? i was under the assumption that when ever you have a CEL vtec does not engage...</TD></TR></TABLE>

If it is a code for a main sensor (MAP, TPS, etc) the ECU will disable vtec. 02 sesnor codes will not disable vtec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbogixxer &raquo;</TD></TR><TR><TD CLASS="quote">

If it is a code for a main sensor (MAP, TPS, etc) the ECU will disable vtec. 02 sesnor codes will not disable vtec.</TD></TR></TABLE>

thanx gixxer for your fast responses.


i just reread my posts and realized how poorly i worded my questions lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nextelbuddy &raquo;</TD></TR><TR><TD CLASS="quote">whats a good way to check the MAP sensor with a volt meter to see if its fried or not?</TD></TR></TABLE>

Pull the map off and see if it holds vacuum, if not, replace it.

Yes, With the key in the on position, measure the voltage between D17 (+) and D21(-). You should have about 3v

Now, start the engine and let it idle for a bit, measure it again. It should be around 1v.

If either one is not reading right, first check the wiring (I posted it in your other thread) then, replace it.